Attachment for sewing-machines.



D.GATTONE. ATTACHMENT FOR SEWING MACHINES.

APPLIOATION FILED MAR. 13, 1909.

Patented Mar. 26, 1912.

t for Sewing-Machines, of which the follow;

UNITED STATES PATENT OFFICE.

DOMENICO G-ATTONE, OF LOS ANGELES, CALIFORNIA, ASSIG-NOR, BY MESNEASSIGN MENTS, TO SYLVESTER- STORMER, O'F PASADENA, CALIFORNIA.

ATTACHMENT FOR SEWING-MACHINES.

I Specification of Letters Patent.

Patented Mar. 26, 1912.

T 0 all whom it may concern:

Be it known that I, DOMENIOO GAJ TONE, a subject of the King of Italy,residing at Los Angeles, in the county of Los- Angeles and State ofCalifornia, have invented new and useful Improvements in Attachments ingis a specification.

This inventionrelates to new and useful improvements in sewing machineattachments and more particularly to an attachment adapted to becombined with an edge guide, and especially intended for the use oftailors or garment makers in stitching lap seams and in work of similarcharacter.

The ultimate purpose of the invention is to provide a presser foot whicheffectually prevents sagging or wrinkling of the cloth and which assuresof the line of stitching being perfectly parallel to the edge by whichthe cloth is guided, the use of basting for this purpose in lap seamwork being rendered unnecessary. V

In carrying out the foregoing object the invention resides in certainnovel features of structure and arrangement, and more particularly in animproved presser foot which may be efficiently used for all widths ofseams, an adjustable presser part being provided for this purpose andemployed in connection with a transversely adjustable edge guide, toassure of the seam having throughout its extent the desired width, the

parts being so arranged that such desired width may be exactlyregulated.

The structural details of the improvement will be set forth at length inthe following description which is to be read in connection with theaccompanying drawings wherein is illustrated a preferred andadvantageous embodiment of the invention while the novel 7 features bywhich the invention is distinguished from prior devices will be setforth in language of the proper determinative scope in the claimsappended at the end of the description.

In the said drawings: Figure 1 is a perspective view of a combinedpresser foot and edge guide attachment for sewing machines, made inaccordance with the-present invention. Fig. 2 is a rear elevationthereof. Fig. 3 is a vertical section on the line 33 of Fig. 2. Fig. 4is a detail perspective view elevation of such adjustable member, and

Fig. 7 is a detail perspective view looking at the rear face of theimproved adjustable edge guide.

Similar characters of reference refer to corresponding parts throughoutthe several views.

The improved presser foot is comprised of two essential elements, astationary part as 1 which is the presser foot proper and a supplementalpresser part, as 2, which is preferably adjustable with relation to thepart 1. The latter includes a shank portion, as 3, which fits upon andis held to the presser bar of the machine, such presser bar beingindicated at 4 in dotted lines in Figs. 1, 2 and 3, a body portion, as5, and a foot portion, as 6, which projects at right angles from theportion 5 and extends upwardlyin the usual manner.

The presser part 2 is of substantial L- shape in cross section andcomprises a vertical back portion, as 7, and a horizontal presser, as 8,which in the assembled relation of the parts forms in effect a lateralextension of the foot portion 6 and is flush therewith.

The presser part 2 has interfitting slidable engagement with the part 1and accordingly an undercut transverse groove, as 9, is formed in thepart 1 adjacent the shank 3 to receive the upper end of the portion 7and an undercut transverse beveled shoulder, as 10, is provided on theunderface of the foot 6 to receive the conformably beveled end of thepresser 8, the under-face of the latter by virtue of this manner ofengagement being flush with the foot 6, as above stated. The presser 8is curved transversely, as best shown in Figs. 2- and 6, the endportions of the presser being therefore higher than its central portion.This arrangement is of particular importance in that it allows of theready feed of the cloth, irrespective of the position at which the part2 may be set. Obviously, if the presser 8 were perfectly flat, thefeeding movement of the cloth, if not positively retarded, would atleast be interfered with and the operation of steam stitching wouldtherefore be imperfect and unsatisfactory.

The slightly raised end portions of the presser 8, however, allow of theready passage of the cloth, the necessary pressure be ing placed thereonby the portion of the presser adjacent the foot 6. Inasmuch as thepresser 8 may extend the entire width of the seam it will be obviousthat wrinkling and sagging of the cloth will be positively prevented.The presser 8 is provided with ascale, as 11, by means of which theadjustments of said presser with respect to the part 1 may be accuratelymade.

The edge guide structure is designated generally as 12, and as shownmore particularly in Fig. 7 comprises a plate, as 13, and a yieldableguide, as 1 1. The plate 13 fits slidably and adjustably in a transversegroove, as 15, formed in the rear face of the portion 7 and said plateat its lower edge is provided with suitably formed loops, as 16. Themeans for yieldably supporting the guide let comprises a rock shaft, as17 which has its bearings in the loops 16 and to one end of which theguide 14 is attached, the said guide being in the nature of a thinangularly projecting arm having a curved bearing edge which rides easilyover cross seams and other surface irregularities of the cloth beingworked upon.

The shaft 17 carries at its other end a rearwardly projecting arm, as18, to which is connected one end of a retractile coil spring, as 19,which is employed to hold the arm 14 in engagement with the cloth orbearing surface of the machine. The plate 13 is formed at its endadjacent the spring 19, with a rearwardly projecting lug, as 20, whichextends from the upper edge of said plate and is provided with anoverturned guide fork, as 21. The other end of the spring 19 is securedto an axially movable screw stem, as 22, which projects through anopening in the lug 20 and which is provided with a knurled adjustingnut, as 23. By turning the nut 23, the stem 22 may be raised or loweredin order to increase or decrease the tension of the spring 19 as ma befound desirable for the particular gra e or thickness of the cloth beingworked upon. The projections of the fork 21 engage in an annular groove24 in the nut 23 and thereby serve to hold the latter against axialdisplacement. The plate 13 is formed with a scale, as 25, by which suchseparate adjustments of said plate as may be necessary, may beaccurately made.

The several parts thus assembled and related are bound together by ascrew, as 26, which is threaded in an opening, as 27 in the body 5 ofthe part 1 and projects through registering longitudinal slots, as 28and 29, in the plate 13 and part 2 respectively, the screw 26 having aknurled head, as 31, and a bearing flange, as 32, which engages theplate 13 and frictionally binds the parts.

From the foregoing description, it will be apparent that the parts maybe adjusted for work on narrow or wide seams, the guidej'l beingadjustably positioned with relation to the foot 6 and the presser 8being usually adjusted to bridge the space between said foot and saidguide for the purpose of preserving the evenness of the cloth and ofassuring of the accurate feeding thereof. In some classes of work, asfor example, in forming shoulder seams on overcoats, an extra wide seammay be desired and in such case a space will occur between the guide 11and the presser 8, the plate 13 being longer than said presser. Thepresser, however, is adjusted as near the guide as possible and theincreased bearing surface will be suflicient to maintain the evenness ofthe cloth.

The present structure efficiently carries out the objects stated and atthe same time is simple in its structural details and inexpensive tomanufacture. The adjustments 'described may be quickly and convenientlymade by manipulating the screw 26 and the device may be readily attachedto any stand ard type of sewing machine.

Having fully described my invention, I claim 1. In a presser foot forsewing machines, in combination, two relatively transversely adjustableparts, one part having a projecting presser foot portion formed with atransverse undercut beveled shoulder and the other part having aprojecting presser which has its edge beveled comformably to saidshoulder and abutting thereagainst, the presser forming in effect alateral continuation of the foot portion and being flush therewith.

2. In a presser foot for sewing machines, in combination, a stationarypart provided with a presser foot, a presser arranged to form at alltimes a lateral continuation of the presser foot, and an edge guide,both the presser and the edge guide being independently transverseladjustable with relation to the presser foot and means common to andacting upon all of said parts to hold them against relative movement.

3. In a presser foot for sewing machines, in combination, two relativelyadjustable parts, one of which has a presser foot portion having atransversely recessed under face and the other of which has atransversely curved presser which is fitted in the recess and projectslaterally of the foot portion.

4:. In a presser foot for sewing machines, 1n combination, a stationarypart having a body portion and a projecting presser foot portionprovided with a transverse undercut shoulder in its under face, and asecond part of L-shaped cross section and removably associated with thestationary part, the second part having a back portion which is heldagainst the back face of the body 'portion and a projecting presserportion formed to engage the shoulder.

5. In a presser foot for sewing machines, a part which is attached tothe presser bar and has a forwardly projecting presser foot portion, thelatter having an unyielding engaging surface and having also atransverse recess in its under face, and a presser part which forms alateral continuation of the foot portion and is fitted in the saidrecess for transverse adjustment with relation to the foot portion, theunder faces of the foot portion and of the presser part being flush.

6. A presser foot for sewing machines comprising two companion parts,one of which has a transverse recess in its under face and the other ofwhich fits in the recess and is adjustably slidable laterally withrespect to said first named part, means for clamping the said laterallyslidable part in various positions with respect to its companion part,both of said parts having portions with presser surfaces the saidpresser surfaces of both of said parts being flush with each other, andforming together a smooth uninterrupted pressure surface adapted to bearupon the cloth.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses. v

DOMENICO GATTONE. WVitnesses G. E. HARPHAM, S. B. AUSTIN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

- Washington, D. G.

